Two specimens were taken on San Clemente Island by C. H. Townsend in 1889. Mr. A. W. Anthony and Dr. E. A. Mearns also found the species there and sent specimens to the National Museum.
I have examined those collected by Mr. Townsend and Mr. Anthony and six specimens sent me by Mr. Joseph Grinnell, of which three are now in the collection of the Academy, and am unable to distinguish the island lizards from the form originally described by Baird and Girard. The femoral pores in three specimens are eleven, twelve, and fourteen.
2. Xantusia riversiana Cope.
Plate V, Fig. 1.
Xantusia riversiana Cope, Proc. U. S. Nat. Mus. v. 12, 1889, p. 147; Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 534; Van Denburgh, Occas. Papers, Cal. Acad. Sci. 5, 1897, p. 132; Cope, Report, U. S. Nat. Mus. 1898 (1900), pp. 552, 553.
This lizard was found on San Clemente by Mr. C. H. Townsend. I have examined several specimens in the collections of the University of California and the California Academy of Sciences without finding differences between them and specimens from San Nicolas and Santa Barbara Islands.
Los Coronados.
I believe that only one reptile from Los Coronados is represented in collections, but I am informed that several other kinds, including Gerrhonotus and Hypsiglena, occur on these islands[7].
1. Crotalus oregonus Holbrook.
Crotalus adamanteus atrox Streets, Bull. U. S. Nat. Mus. no. 7, 1877, p. 40; Yarrow, Bull. U. S. Nat. Mus. no. 24, 1882, p. 75 [part].
Crotalus atrox Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 156 [part].
Crotalus lucifer Stejneger, Report, U. S. Nat. Mus. 1893 (1895), pp. 445, 447.
Crotalus confluentus confluentus Cope, Report, U. S. Nat. Mus. 1898 (1900), p. 1173 [part].